167768-04-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 167768-04-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,7,7,6 and 8 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 167768-04:
(8*1)+(7*6)+(6*7)+(5*7)+(4*6)+(3*8)+(2*0)+(1*4)=179
179 % 10 = 9
So 167768-04-9 is a valid CAS Registry Number.